| Usage/Application | Laboratory |
Vibration testing checks if lithium batteries handle shakes and bumps. This helps make them safer and more reliable. Proper tools, like a vibration test bench and charge tester, are needed. These tools give correct results and meet industry rules. Following rules like UN 38.3 keeps you legal. It also shows the batteries are strong and safe. To conduct a reliable vibration test of lithium batteries, you need specialized equipment designed to simulate real-world mechanical stresses. Accurate Signal Transmission: Ensure the vibration signal reaches the battery sample without distortion or deformation. Multi-Directional Testing: Conduct tests in three mutually perpendicular directions to account for irregular battery shapes. Post-Test Procedures: Perform a discharge-charging cycle after vibration testing to evaluate battery performance. Simulate transportation vibrations using a sine sweep from 7Hz to 200Hz over 15 minutes. Execute 12 sweeps over 3 hours in three mutually perpendicular axes. Monitor battery parameters such as voltage, temperature, and internal resistance during testing. Compliance with international standards ensures the safety and reliability of lithium batteries during transportation and operation. These standards define the parameters for vibration testing, including frequency ranges, amplitudes, and test durations. UN 38.3: Focuses on transportation safety. Requires testing across 7Hz–200Hz frequency range with specific amplitude and acceleration values. IEC 62660-2: Targets automotive applications.
